For the past 15 years in collaboration with a research group at Aerodyne Research Inc., Professor Davidovits and his graduate students have studied gas-liquid interaction for more than 30 gas phase species. The results of these studies provided basic information about the physical chemistry of gas-liquid interactions at the interface, including an understanding of how gas molecules enter liquids and how they react at the gas liquid interface. This work has also provided key parameters needed to understand the role of cloud and aerosol chemistry in atmospheric processes such as acid rain formation, dry acid deposition and ozone depletion. Recently Professor Davidovits and his collaborators have developed a novel aerosol mass spectrometer for field and laboratory aerosol studies. This apparatus is yielding new information about the morphology dependent chemistry of atmospheric aerosols.

Representative Key Publications:

"Particle Morphology and Density Characterization by Combined Mobility and Aerodynamic Diameter Measurements." Part 2: Application to Combustion Generated Soot Aerosols as a Function of Fuel Equivalence Ratio” J.G. Slowik, K. Stainken, P. Davidovits, L.R. Williams, J.T. Jayne, C.E. Kolb, and D.R. Worsnop,Y. Rudich P. DeCarlo, J.L. Jimenez. Aerosol Sci. Technol. 38, 1206-1222, doi: 10.1080/027868290903916, (2004).

"Mass Accommodation and Chemical Reactions at Gas-Liquid Interfaces" P. Davidovits, C. E. Kolb, L. R. Williams, J. T. Jayne and D. R. Worsnop, Invited review article. Chemical Reviews, 106, 1323-1354, (2006).

"Heterogeneous Uptake of 8-2 Fluorotelomer Alcohol on Liquid Water and 1-Octanol Droplets" Y. Q. L,i K. L. Demerjian, L. R. Williams, D. R. Worsnop and C. E. Kolb, P. Davidovits, J. Phys. Chem. A 110, 6814-6820, (2006).